Callaway lost balls, 20 balls, mixed A and B grade. About half are A-grade, clean balls, so it's a great deal! Callaway - ERC. SOFT E•R•C M A X. Mixed year models. Popular matte color A-grade balls 4 balls and 16 other balls, mixed A and B grade. Lost balls are used balls. Please purchase only if you understand this. m(_ _)m Regarding the grades of lost balls I sell, they are as follows: A grade = Hand-washed and inspected, with no noticeable scratches, no marker marks, logos, or fading, and in very clean condition. B grade = Hand-washed and inspected, with some scratches, marker marks, logos, or names mixed in, but usable on the course. C grade = All balls have dirt, some noticeable scratches, marker marks, logos, or fading. Recommended for practice balls.